Which ones sound better to you? Have you tried them in your home?
In case of a toss up to your ears, judge the center channel as the deciding factor... the center channel is critical to movies, and will be highly reflective of the midrange quality of the front speakers as well.
I owned Infinities (RS4) from many years ago. Loved the sound then. Today I own Polk LSi's. Ears and tastes change over time.